(L-R) Spain's Queen Letizia and King Felipe and Mexican President Enrique Pena Nieto and his wife Angelica Rivera pose for pictures at the colonial Museum of Guadalupe in Guadalupe, Zacatecas, Mexico, on July 1, 2015. The Spanish royals are making their first state visit to the Americas since their coronation.  AFP PHOTO / HECTOR GUERRERO        (Photo credit should read HECTOR GUERRERO/AFP/Getty Images)